7
UNIT DESCRIPTION
Main Power Switch: Turns on all UPS functions, except the internal battery charger on model
MM450. Charger on MM450 operates when UPS is connected to commercial power.
Test/Alarm Silencer Switch: Depressing this switch while in the AC mode causes the UPS to
switch to the Inverter mode. Depressing the switch while in the Inverter mode silences the
Audible Alarm until it is reset again.
Input Plugs, Fuses, and Output Receptacles:
MODEL #
INPUT PLUG
INPUT FUSE OR
CIRCUIT BREAKERS (CB)
OUTPUT RECEPTACLES
MM450
NEMA 5-15P
5A
4 -- NEMA 5-15R
MM1300
NEMA 5-15P
12A CB
4 -- NEMA 5-15R
MM850
NEMA 5-15P
8A
4 -- NEMA 5-15R
MM2000
NEMA L5-30P
20A
*4 -- NEMA 5-15R
MM2000/2
✝
Opt. Int.
10A CB
4 -- IEC 320
MM2000/2U
NEMA L6-30P
10A CB
*2 -- NEMA L6-30R
* These units are also available with several combinations of locking and straight blade receptacles.
✝
✝
Optional International Plugs
LEDS: AC NORMAL: Green when commercial voltage is in range and present, provided
battery circuit breaker is closed; off otherwise.
BATTERY IN USE: Red while unit is running in Inverter mode. In AC mode,
blinks when batteries are low or DC circuit breaker is off.
OUTPUT LOAD: Functions in AC mode only, providing an indication of the
actual output load. Each green LED represents 1/9 of total available output of
each unit. The red LED signifies overload.
BATTERY STATUS: Functions in Inverter mode only, providing a measure of
battery time remaining. As battery begins to run down, LEDs extinguish from left
to right. At low battery warning, only the two red LEDs are still on.
Audible Alarm: Sounds after a ten second delay every two seconds during inverter run mode.
Alarm frequency changes at low battery warning to two per second.
Cooling Fan: All units are forced air-cooled; however, fan runs only in Inverter mode.